D defs.my
Entry 3 senses · 3 variants Webster, 1913

Endeavor

/ĭn-dĕv'-ẽr/ · En·deav·or · IPA /ɛnˈdɛv.ɚ/
01 v. t. To exert physical or intellectual strength for the attainment of; to use efforts to effect; to strive to achieve or reach; to try; to attempt.
imp. & p. p. Endeavored; p. pr. & vb. n. Endeavoring
  1. 1.
    To exert physical or intellectual strength for the attainment of; to use efforts to effect; to strive to achieve or reach; to try; to attempt.
    “It is our duty to endeavor the recovery of these beneficial subjects.” — Ld. Chatham.
Phrases & compounds
To endeavor one's self — to exert one's self strenuously to the fulfillment of a duty.
02 v. i. To exert one's self; to work for a certain end.
  1. 1.
    To exert one's self; to work for a certain end.
    “And such were praised who but endeavored well.” Pope.
    “He had . . . endeavored earnestly to do his duty.” Prescott.
03 n. An exertion of physical or intellectual strength toward the attainment of an object; a systematic or continuous attempt; an effort; a trial.
  1. 1.
    An exertion of physical or intellectual strength toward the attainment of an object; a systematic or continuous attempt; an effort; a trial.
    “To employ all my endeavor to obey you.” Sir P. Sidney.
Phrases & compounds
To do one's endeavor — to do one's duty; to put forth strenuous efforts to attain an object; -- a phrase derived from the Middle English phrase “to do one's dever” (duty).